M626
Programmer
- Mar 13, 2002
- 299
I need to Get this code onto a GUI interface(an applet) any anyone show me what I need to add to do this. I have the html code to call the class file I just need to know what I need to add to this code.
Thanks,
import javax.swing.*;
public class ArrayPrime {
public static void main(String args[]) {
int num1, sq; // Creates int variable
String val; // Creates String variables
val = JOptionPane.showInputDialog (" Enter a number from 1 to 1000: " ); //get's number for array
num1 = Integer.parseInt( val ); //changes what's inputed into a int value
while ( num1 < 3 || num1 > 1000 ) { //makes sure the value is in the proper range
val = JOptionPane.showInputDialog (" Please only enter a number between 3 to 1000, to get prime numbers." ); //error check to make sure correct value entered
num1 = Integer.parseInt( val ); //changes what's inputed into a int value
}
boolean[] isprime = new boolean[num1+1]; //creates array with num1 equal to input
// Assume all numbers are primes, until proven wrong
for(int count = 2; count <= num1; count++) //make all numbers initaially prime
isprime[count] = true; //makes all array element initially prime
sq = (int) Math.ceil(Math.sqrt(num1)); // finds square root of value inputed by to determin what number to factor
for(int count2 = 0; count2 <= sq; count2++) { //make all the multiples of a prime number set to false
if (isprime[count2] == true)
for(int count3 = 2*count2; count3 <= num1; count3 += count2) // loop through its multiples
isprime[count3] = false; // changes all multiples of prime numbers into false so they're noted as "not prime".
}
for( int count4= 2; count4 <= num1; count4++) //goes through all numbers that were searched to print out all that are prime
if (isprime[count4] == true) //checks if the array element is true
System.out.print(count4 + " "
; //outputs that value
System.exit(0);
}
}
Thanks,
import javax.swing.*;
public class ArrayPrime {
public static void main(String args[]) {
int num1, sq; // Creates int variable
String val; // Creates String variables
val = JOptionPane.showInputDialog (" Enter a number from 1 to 1000: " ); //get's number for array
num1 = Integer.parseInt( val ); //changes what's inputed into a int value
while ( num1 < 3 || num1 > 1000 ) { //makes sure the value is in the proper range
val = JOptionPane.showInputDialog (" Please only enter a number between 3 to 1000, to get prime numbers." ); //error check to make sure correct value entered
num1 = Integer.parseInt( val ); //changes what's inputed into a int value
}
boolean[] isprime = new boolean[num1+1]; //creates array with num1 equal to input
// Assume all numbers are primes, until proven wrong
for(int count = 2; count <= num1; count++) //make all numbers initaially prime
isprime[count] = true; //makes all array element initially prime
sq = (int) Math.ceil(Math.sqrt(num1)); // finds square root of value inputed by to determin what number to factor
for(int count2 = 0; count2 <= sq; count2++) { //make all the multiples of a prime number set to false
if (isprime[count2] == true)
for(int count3 = 2*count2; count3 <= num1; count3 += count2) // loop through its multiples
isprime[count3] = false; // changes all multiples of prime numbers into false so they're noted as "not prime".
}
for( int count4= 2; count4 <= num1; count4++) //goes through all numbers that were searched to print out all that are prime
if (isprime[count4] == true) //checks if the array element is true
System.out.print(count4 + " "
; //outputs that value System.exit(0);
}
}